1890146517 has 16 divisors (see below), whose sum is σ = 2958068352. Its totient is φ = 1050891840.

The previous prime is 1890146491. The next prime is 1890146519. The reversal of 1890146517 is 7156410981.

It is not a de Polignac number, because 1890146517 - 2²² = 1885952213 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1890146519) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1215534 + ... + 1217087.

It is an arithmetic number, because the mean of its divisors is an integer number (184879272).

Almost surely, 2^1890146517 is an apocalyptic number.

It is an amenable number.

1890146517 is a deficient number, since it is larger than the sum of its proper divisors (1067921835).

1890146517 is a wasteful number, since it uses less digits than its factorization.

1890146517 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2432668.

The product of its (nonzero) digits is 60480, while the sum is 42.

The square root of 1890146517 is about 43475.8153115039. The cubic root of 1890146517 is about 1236.4175382365.

The spelling of 1890146517 in words is "one billion, eight hundred ninety million, one hundred forty-six thousand, five hundred seventeen".